Musescore 4.5 on Mac - Crashes when Opening Mixer

• Mar 18, 2025 - 09:38

Good morning,
I've just installed version 4.5 (very excited) on my Mac.
Every time I open the Mixer window, the program crashes and Muse Score closes. When I start it back up it gives me a prompt saying that it terminated unexpectedly.

This happens across multiple different scores (even a band new score) and whether triggered from the button or from the menu. It happens both during playback and when not playing back.

I can attach a diagnostics file from directly after a restart if that will help.

Cheers,
Bevan


Comments

I have also tried to display the mixer and Musescore crashes every time. I am surprised that we are the only ones using the mixer ;-)
According to log file, I only see the toggle mixer action without any other error log.

Resolved:
Deleted the folder Library/Application Support/MuseScore/MuseScore4 and this has helped to reset the app.

Attachment Size
MuseScore_250624_081629.log_.zip 2.98 KB

In reply to by mic45sam

It seems that the issue is when the mixer is undocked. As long as it is attached to the main window it seems to work fine. If yours is already undocked you should be able to restore it with "Restore Default Layout"... at least that has worked for me.

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